Shaking things up: the unique feeding behaviour of western banded geckos when consuming scorpions

Abstract Predators that feed on dangerous prey species must evolve mechanisms to reduce the likelihood of injury or death during a predation attempt. Scorpions are prime examples items for insectivores, because they can inflict venomous and potentially fatal sting when attacked. Despite this risk, western banded gecko (Coleonyx variegatus), generalist insectivore, occasionally preys dune scorpions (Smeringurus mesaensis). We use high-speed videography examine modulation capture biomechanics in relationship type. The undefended evasive (cricket) non-evasive (worms) follows previous studies lizard attack kinematics. However, we have discovered unique shake-feeding behaviour used by geckos feeding scorpions, whereby bites scorpion, then performs very rapid side-to-side shaking with its head body. Given speed violence shake-feeding, suggest shake scorpion cause mass trauma subsequent immobility or, potentially, break stinger render harmless. This might be widespread among these species.